カエル類7 種における繁殖生態と食性の関係性について

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概要

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• Food habits of seven frog species during mating periods were examined from gastric contents and species comparison were conducted. From 1041 frogs, elementary information on their food habits such as species and sizes of prey insects were reported and species difference and sex difference were discussed. Males of Tago's brown frogs (Rana tagoi ) and Shlegel's green tree frogs (Rhacophorus schlegelii ) foraged nothing during mating periods as previous reports, but males of the other five species did. Males of Japanese tree frogs( Hyla japonica) and Japanese stream frogs( Buergeria buergeri) were getting to forage towards the end of their mating periods. Especially, male black spotted pond frogs( Rana nigromaculata ) seemed to prefer larger insect than expected from their environment food resources, foraged well and gained their body weight during mating periods. These species differences seem to be caused mainly from their length of mating periods and their extent of site fidelity in mating periods.

• 2012-03-31

著者

• 篠原 正典

  帝京科学大学生命環境学部自然環境学科

• 佐野 誠

  帝京科学大学大学院理工学研究科環境マテリアル専攻

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• 12.ヒメマルカツオブシムシの衣類繊維への嗜好性(一般講演,日本家屋害虫学会第32回年次大会講演要旨)
• カエル類7 種における繁殖生態と食性の関係性について

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